Stop Laughing
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This is the face of a digital clock (or watch). Notice there are a total of 23 lines/lights in there. Obviously at no point during the day are all 23 lights on, there is no 18:88 time. Anyways, when changing from one minute to another, the number of lights that are on may change, for example when it goes from 12:23 to 12:24, it loses one light, a '3' has 5 lights and a '4' has 4 lights. so it loses one. What is the highest number of lights lost when changing from one minute to another in a 12 hour period (only 1 to 12 o'clock, military time doesn't count), and how often does it happen in that 12 hour timeframe? Also note that the corners on the numbers are not part of this question either.